Ammonites occurred in hundreds of species and varieties. They have almost all the same floor plan:

Ammonites are an extinct group of the subclass Ammonoidea of the Cephalopoda. They are marine animals manfrotto plate worldwide in large numbers occurred in the late Paleozoic and throughout the Mesozoic. They are found as fossils. Ammonites have a flat spiral shell which is composed of different rooms. Each time the animal is too large for the current manfrotto plate chamber is formed a new larger outer chamber. In this outer chamber the animal's manfrotto plate life, that the other empty rooms further used as a means to move vertically. Ammonite manfrotto plate separates gas from these rooms so as to control the lift force on the shell.
Ammonites occurred in hundreds of species and varieties. They have almost all the same floor plan: a flat spiral shell. There still exist some exceptions: some heteromorphic species that have no spiral shell. The ammonites manfrotto plate of size ranging from less than an inch to more than 2.5 meters in diameter. The closest living relative manfrotto plate is the nautilus.
The name comes from the Egyptian god Amon, who was depicted as a man with the head of a ram. Ammonites look like the curled rams' manfrotto plate horns that Ammon was proposed. In the Roman author Pliny the Elder, we find descriptions back of fossils of these animals that he "cornu ammonis" called (horns of Ammon).
Ammonites are an extinct group of marine animals of the subclass Ammonoidea in the class Cephalopoda, phylum Mollusca. They are excellent index fossils, and it is possible to link or at the rock layer in whichthey are found to specific geological manfrotto plate time periods. Ammonites' Closest living relative is probably not the modern Nautilus (whichthey outwardly resemble), but ratherkool the subclass Coleoidea (octopus, squid and cuttlefish). Their fossil shells Usually take the form or planispirals, Although there were some helically-spiraled and non-spiraled forms (known as "heteromorphs"). Their spiral shape Begot theirsname ash Their fossilized shells somewhat resemble tightly-coiled rams' horns. Pliny the Elder called fossils of These animals ammonis cornua ("horns of Ammon") Because The Egyptian manfrotto plate god Ammon (Amun) was Typically depicted wearing ram's manfrotto plate horns.
Naturalis (Group)
Privacy Terms Yahoo! Safely Help